An environment for building and maintaining Web views

Alisson R. ArantesAlberto H. F. LaenderPaulo Braz GolgherAltigran Soares da Silva

The huge amount of data available on the Web creates great demand for methods and tools that allow the manipulation of these data with the same functionality and flexibility commonly found when accessing traditional databases. Thus, the notion of view as a mechanism for providing access to data of interest, regardless of their structure, origin, and form of storage, has been revisited for the Web context. In this paper, we present an environment composed of a set of high-level tools that allow fetching, extraction, and integration of Web data. Using this environment, database designers can build and maintain Web views by defining schemas for data integration, specifying wrappers for data extraction, and defining plans for refreshing the view contents.

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